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This paper presents a phenology-preserving filtering method as a significant improvement to the standard changing-weight filter method to reduce noise in NDVI time series. Specifically it introduces two new features: (1) replacing the changing-weight filter with a 3-point Gaussian filter to improve the computing efficiency; and (2) introducing a multi-year average NDVI time series to remove the false...
Extracting cropland parcels from high-resolution remote sensing images is an important issue for dynamic land-use monitoring, precision agriculture and other fields. However, cropland spectra change frequently in time and spatial space. The application of multi-spectral image classification in cropland extraction, not only leads to misclassification with other vegetation easily, but also results in...
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